When William Rosecrans Squires was born on 18 December 1862, in Michigan, United States, his father, Samuel C Squires, was 34 and his mother, Martha Ann Wheeler, was 24. He married Laura Anna Belle Myers on 29 June 1887, in Grand Rapids, Kent, Michigan, United States. They were the parents of at least 5 sons. He lived in Lowell, Kent, Michigan, United States in 1900. He died on 22 July 1927, in Grand Rapids, Kent, Michigan, United States, at the age of 64, and was buried in Fair Plains Cemetery, Grand Rapids, Kent, Michigan, United States.